Ellis K J, Shypailo R J, Abrams S A, Wong W W
USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, Texas 77030-2600, USA.
Ann N Y Acad Sci. 2000 May;904:374-82. doi: 10.1111/j.1749-6632.2000.tb06486.x.
Changes in the relative proportions of bone, muscle, water, visceral tissues, and body fat occur during growth. In the 1980s, reference models of body composition for children and adolescents were constructed by adjusting data on total body water (TBW), total body potassium (TBK), and regional bone mineral (BMC) data from several different Caucasian populations. In our study, we measured TBW, TBK, and total body BMC in 856 healthy European-American, African-American, and Mexican-American children. When we reconstructed the reference models using our contemporary data, we found that the body's bone, protein, and fat compartments are slightly but significantly different from the earlier models. Our study provides the range of normal body composition of healthy children, aged 5-18 years, and accounts for differences related to gender and ethnicity.
在生长过程中，骨骼、肌肉、水、内脏组织和身体脂肪的相对比例会发生变化。20世纪80年代，通过调整来自几个不同白种人群体的全身水（TBW）、全身钾（TBK）和区域骨矿物质（BMC）数据，构建了儿童和青少年身体成分的参考模型。在我们的研究中，我们测量了856名健康的欧美裔、非裔美国人和墨西哥裔美国儿童的TBW、TBK和全身BMC。当我们使用当代数据重建参考模型时，我们发现身体的骨骼、蛋白质和脂肪部分与早期模型略有但显著不同。我们的研究提供了5至18岁健康儿童正常身体成分的范围，并说明了与性别和种族相关的差异。
